A
Plants are like nature's superheroes, finding clever ways to live in deserts, rainforests, and even oceans by using special tricks. Let's find out their secrets!
Cacti(仙人掌) are water savers. In hot, dry deserts, cacti face big challenges. When it rains, they take in lots of water fast and store it, like a camel storing fat. Some cacti have very long roots(根). These roots go deep into the ground to find water. Imagine living for years without rain! Their sharp spines(刺) do two jobs: they keep hungry animals away and protect the plant from the hot sun.
Rainforest plants are light hunters. In rainforests, it rains every day. Tall trees grow close together, blocking sunlight and making plants cannot reach the sun easily. Only $2\%$ of sunlight reaches the ground! Smaller plants climb up trees to reach light. Some have big, wide leaves to catch as much light as possible. Others have leaves that are shaped like funnels(漏斗), which can collect and direct sunlight to where it's needed.
Desert plants save every drop of water. Rainforest plants fight for light. Though their ways are different, their goal is the same—★. Even in oceans, plants find ways to live. Seagrass has strong roots to stay in place underwater. Ocean plants also remove salt from water, which is a skill humans can't copy!
Plants teach us that living isn't about being the strongest—it's about being clever. Cacti show us how to save water. Rainforest plants tell us never to give up. And many other interesting plants are waiting for us to study! These plants help scientists solve problems and teach us to protect different environments. After all, every plant, big or small, has a role in our world.
B
()1. Cacti can live in deserts because they .
A. have short roots to store water
B. can use their spines to store water
C. can store water and protect themselves
D. live near animals for water
()2. Why do rainforest plants need to be light hunters?
A. Because there is too much rain.
B. Because sunlight is hard to reach the ground.
C. Because the trees are too short.
D. Because they have big leaves.
()3. Which of the following can be put in ★?
A. to make a beautiful world
B. to live and grow
C. to get more clean water
D. to create a better place to live
()4. What can we mainly learn from plants?
A. Grow as quickly as possible.
B. Don't follow natural rules.
C. Fit yourself into the environment.
D. Expect nothing from others.
()5. Which would be the best theme picture of the passage?
A.

1.C 2.B 3.B 4.C 5.C

【分析】
本题为英语阅读理解题，需结合原文内容逐一分析每道题：1题定位仙人掌适应沙漠的原因，2题找雨林植物当“light hunters”的原因，3题推断两种植物的共同目标，4题提炼文章主旨，5题选择符合主题的图片。每道题都需回到原文对应段落，对比选项排除错误答案，选出正确选项。
【解析】
1. 解析：根据原文第二段，仙人掌是“water savers”，能储存水分，其刺的作用是防止动物侵害和保护自身免受烈日暴晒，因此仙人掌能在沙漠生存。A选项“短根储水”与原文“长根”不符；B选项“刺储水”错误，刺的功能并非储水；D选项“靠动物找水”无依据，故选C。
2. 解析：根据原文第三段，雨林中树木密集，遮挡阳光，仅2%的阳光能到达地面，因此雨林植物需要成为“light hunters”来获取阳光。A选项“雨多”不是原因；C选项“树矮”与原文“大树”不符；D选项“大叶子”是结果而非原因，故选B。
3. 解析：沙漠植物储水、雨林植物争光，二者适应环境的方式不同，但共同目标是生存和生长。A、C、D选项不符合文意，故选B。
4. 解析：最后一段指出植物教我们“不是最强而是聪明”，即要适应环境。A选项“快速生长”无依据；B选项“不遵循自然规则”与文意相反；D选项“不指望别人”未提及，故选C。
5. 解析：文章主题是植物适应不同环境（沙漠、雨林等）的生存策略，选项C的图包含沙漠植物、雨林植物等典型代表，符合主题；A仅为沙漠植物，B仅为雨林植物，D仅为沙漠景观，均不全面，故选C。
【答案】
1.C 2.B 3.B 4.C 5.C
【知识点】
阅读理解细节理解、主旨大意、推理判断
【点评】
本题围绕植物适应环境的生存策略展开，题目侧重考查学生对原文细节的定位、主旨的把握及逻辑推理能力，整体难度适中，学生只要仔细阅读原文即可正确作答。
【难度系数】
0.6